Pipe flanging machine



Feb. 23, 1937. F. H; ANDRUS PIPE FLANGING MACHINE Filed Dec. 10, 1935 2 Sheets-Sheet l Feb. 23, 1937. F. H. ANDRUS 2,071,314

PIPE FLANGING MACHINE Filed Dec. 10, 1955 2 Sheets-Sheet 2 3 32 /2 -l l G 2.3 I l A3 I l Patented Feb. 23, 1937 UNITED STATES PATENT OFFICE 7 Claims.

My invention relates to that class of machines which are employed to form flanges on the ends of pipes, and an object of my invention, among others, is the production of a machine of this class that shall be simple in construction and particularly efficient in operation and of such size that it may be possessed by mechanics having small shops and not requiring the use of a large machine.

One form of a machine embodying my invention and in the construction and use of which the objects herein set out, as well as others, may be attained, is illustrated in the accompanying drawings in which Figure 1 is an end view of my improved machine.

Figure 2 is a top view of the same.

Figure 3 is a side view.

Figure 4 is a view of the end opposite to that shown in Fig. 1 with the parts beyond omitted.

Figure 5 is a detail view in horizontal section on a plane denoted by the dotted line 55 of Fig. 1.

Figure 6 is a view in cross section on a plane denoted by the dotted line 6--6 of Fig. 2.

Figure '7 is an isometric perspective view of the base of the machine with attached parts.

Figure 8 is a similar view of the tool feeding member.

Figure 9 is another similar view of the tool feeding slide.

Figure 10 is a like view of the tool supporting shaft.

Figure 11 is a similar view showing the two supporting dies.

In the accompanying drawings the numeral I2 denotes the base of my improved machine which is preferably composed of metal with a bearing |3 rising therefrom at one end thereof. A tool supporting shaft I4 is rotatably mounted in said bearing, a crank handle |5 being loosely mounted on the outer end of the shaft. A ratchet I6 is secured to the shaft and a two-toothed pawl I! is pivotally mounted on the handle for engagement with the teeth of said ratchet. A spring I8 may be engaged with either side of the handle l5 to effect engagement of either of the pawls with the teeth of the ratchet wheel so that feeding action of the pawl will be obtained by movement of the handle in either direction only. A flanging tool is secured to the end of the shaft opposite the ratchet, such tool comprising a head I9 and a flanging roller 20, the roller preferably being tapered or of frusto-conical shape.

A tool feeding slide 2| is mounted for sliding movement on a slideway 22 comprising a shoulder formed on one side of the bearing I3, as shown in Fig. 7 of the drawings. This slide has a downturned lip 23 to receive one end of a spring 24, the opposite end of said spring being seated in a recess 25 in the side of the bearing l3. A feeding handle 26 is pivotally mounted in a grip handle 21 secured to and projecting from the upper side of the bearing l3. A pin 28 projects from the handle 26 through a hole 29 in the slide 2|.

A tool feeding member 30 isloosely mounted upon the shaft l4 adjacent the head Hi, this feeding member being in the form of a disk with a stud 3| engaging an actuating lug 32 projecting from the slide 2|, and as shown in Fig. 9. The projecting forward end of the bearing l3 has feed cams 33 formed on diametrically opposite sides thereof to receive cam lugs 34 projecting from diametrically opposite sides of one face of the disk 30 comprising the tool feeding member.

Holding and forming dies 35-36 are held by pins 31 projecting upwardly from the base to position said dies in proximity to the fianging roller 20. The lower die 35 preferably has notches 38 for engagement with the pins 31 and the upper die preferably has holes 39 through which said pins extend. The adjacent edges of the dies are recessed to receive a pipe 40 the end of which is to be flanged, and as shown in Fig. 5 of the drawings. A yoke 4| is pivotally attached to the base so that it may be swung upwardly over the dies or downwardly therefrom, as shown in Fig. 7 of the drawings.

A clamp screw 42 is threaded through the upper part of the yoke to engage the upper die 36 to force the dies together and securely clamp the pipe 40 therebetween.

In the operation of the machine a pipe being secured in place as shown in Fig. 5.the handle I5 is turned to rotate the shaft l4 and thereby the flanging' tool. The pawl and ratchet l1 and I6 respectively will permit a step-by-step movement of the shaft if desired by rocking the handle in opposite directions, or the spring l8 may be so engaged with the handle on one edge as to enable the shaft to be turned continuously in either direction as may be desired. The other hand of the operator being placed upon the grip handle 21 which affords a support the fingers are gripped under the feed handle 26 and the latter being drawn toward the handle 21, the slide 2| will be moved to effect rotation of the feeding member 30 whereby the engagement between the feed cams and the cam lugs 34 will cause the the rotation of the shaft will effect the formation of a flange on the end of the pipe or tube, as will be readily understood by an examination of the drawings.

I claim:

1. A flanging machine including a rotatably mounted flanging tool, means for supporting a pipe adjacent said tool, a shaft to support said tool, a bearing for said shaft, a cam projecting from the end of said bearing, a tool feeding disk loosely supported on said shaft, a cam lug projecting from the face of said disk to operatively engage said lug on the end of said bearing, and means for effecting relative movement between said cams to cause feeding movement of said member.

2. A fianging machine including a bearing, a feed shaft rotatably mounted in said bearing, means for rotating said shaft, means for supporting a pipe adjacent said tool, a tool feed member mounted on said shaft, a cam lug projecting from said member, a cam formed on said bearing, said cams being operatively engageable, a grip handle projecting from said bearing, a feed handle underlying said grip handle and pivotally movable with respect thereto, and an operative connection between said feed handle and said member to effect engagement of said cams to cause feeding movement of said member.

3. A fianging machine including a bearing, a shaft rotatably mounted in said bearing, a flanging tool supported by said shaft, a cam lug formed in the end of said hearing by means of a notch cut across the end of the bearing, means for supporting a pipe adjacent to said tool, a tool feeding member mounted on said shaft, a cam lug projecting from said member into said notch, and means for effecting relative movement between said cams to cause feeding movement of said member.

4. A fianging machine including a rotatably mounted fianging tool, means for supporting a pipe adjacent said tool, a tool feeding member operatively connected with said tool for feeding it, a cam lug projecting from said member, a cam operatively engageable with said lug, a feeding slide, an operative connection between one of said cams and said slide to eflect relative movement thereof to said feed tool, a grip handle rigidly supported, and a feed handle pivotally mounted for hand gripping action in connection with said feed handle and operatively engaged with said slide for operating it.

5. A fianging machine including a rotatably mounted flanging tool, means for supporting a pipe adjacent said tool, a rotatably mounted feeding member operatively connected with said tool for feeding it, a cam lug projecting from said member, a. cam operatively engageable with said lug, a slide to effect rotation of said member to feed said tool, a grip handle rigidly supported, and a feed handle pivotally mounted for hand gripping action in connection with said grip handle and operatively engaged with said slide for operating it,

6. A fianging machine including a rotatably mounted fianging tool, means for supporting a pipe adjacent said tool, a tool feeding member rotatably mounted and operatively connected with said tool for feeding it, a cam lug projecting from said member, a cam rigidly mounted in the path of movement of said cam lug, a stud projecting from said feeding member, a slide engageable with said stud for rotating said member, a rigidly supported grip handle, and a pivotaily mounted feed handle operatively engaged with said slide for operating it.

7. A flanging machine including a bearing, a cam formed by cutting a notch across the end of said bearing, a shaft rotatably mounted in said bearing, a feeding member mounted on said shaft and having a cam lug engageable in said notch, a slide, an operative connection between said slide and feeding member for rotation of the latter, a rigidly mounted grip handle, a pivotally mounted feed handle, and a loose connection between said feed handle and slide for operating the latter.

FOSCOE H. ANDRUS. 

